SU1503807A1 - Invalid wheel-chair - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to the movement of persons with disabilities. The purpose of the invention is to increase the safety of the disabled person by ensuring that the ride is smooth when moving along stairs. The device consists of a seat 1, a backrest 2, a carcass 3 with front and rear running wheels 4 and 11, respectively, a drive 5 of a chain transmission 6, a seat tilt mechanism 9, a mechanism 10 that travels along stairs from a flange 12 with a gear track 14 and a roller 19 with a tooth MI and mechanism 22 disable the chain gears 6 in the form of levers 23, rods 24 and springs 25. 22 Il.

Description

The invention relates to medical devices, specifically to the environment of movement of persons with disabilities.

The purpose of the invention is to increase the safety of the disabled person by ensuring that the ride is smooth when moving along stairs.

FIG. 1 shows an invalid wheelchair, side view; in fig. 2 - view from above; in fig. 3 - stake, rear view; in fig. 4 — running wheel with a scheme for raising an obstacle on a ladder; in fig. 5-13 are diagrams of the position and interaction of the nodes of the kolki when climbing from the platform to the stairs, moving along the stairs and exiting the stairs to the platform; in fig. 14-22 - schemes of position and interaction of nodes kolki during descent from the platform, to the staircase, movement along the stairs and descent from the stairs to the site.

A wheelchair wheel consists of a seat 1, a backrest 2, a frame 3 with front wheels 4, a drive 5 with a chain drive 6, one sprocket 7 of which is mounted on the output shaft 8 of the drive 5, a seat tilt mechanism in the form of a handle 9 and a mechanism 10 move the stairs.

11 rear wheels are made running. The mechanism 10 for moving along a ladder. Is built into the driving wheels 4, 1. Each running wheel is made of a flange 12 with two smooth 13 and one toothed 14 tracks on the inner surface and an elastic edging 15 with teeth on the outer, yoke 16 from two disks 17, two smooth po; 1 18, mounted on the disks 17 of the holder 16, and one roller 19 with teeth mounted on the shaft 20 of the frame 3.

The second sprockets 21 of the chain gears 6 are installed on the base 1 20 of the frame 3. The drive is equipped with a mechanism 22 for switching off the chain gears 6 in the form of levers 23, rods 24 and springs 25.

Disabled call speed works as follows.

In order to move on flat surfaces and on the platforms between the stairs, the rotation of the handle 26 activates the driving mechanism of a roller, rotating the shafts 20 mounted in the frame 3, with rollers 19 with teeth, which are hooked with the grooves of the track 14 of the flange 12 , rotate the flange 12 around the yoke 16. Kol ska makes

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postunatal movement, with the rollers 19) in the lower points of the ribs.

Rotation of the co.ch ski while moving with the iiOMOiiU) X) mechanism 22 disconnecting the chain 1K rad. If it is necessary to turn KODYAGK1 to the left, the manual lever 23 is deflected to the left, while the push lever lends HITOK 24 to the right, reduces the spring 25 of the coupling 27, replaces the insert 28, the output from the jumper. 1 with a block of sprockets 7. The lateral movement of the left pair of wheels stops and, when the right bunk moves, makes a turn to the left. When open Jupepni manual) lever 23 to the right in the same way there is a shift to the right.

Preservation of the vertical position of the seat by walking around while moving the stairs along the stairs - lifting and snoring. The rotation is carried out by turning the knob 9 of the worm shaft 29. Cherv chpyi; al rotates around the screw section i opa 30 fixedly mounted on the frame 3. At the same time, turn the seat at an angle close to the angle of elevation and descent of the staircase steps (Fig. 6 and 12 when the node is on, Fig. 17 N 21 when sgtusk).

Climbing and exiting the stairs consists in overcoming each obstacle with the wheel 4 steps, and is carried out in the following way.

Upon encountering an obstacle - the step of a ladder (HiiiU), the wheel stops (Fig. 4), the mechanism Ko; iec rotates the shaft 20 with rollers 19 with teeth, which, engaging with the grooves of the track, 14 rebar; on disk 17 clips 16, together with the frame, are not worn over the flange to a level exceeding the height of the step, while clips with discs (1M) are worn in the flange. Under the force of gravity of the wheel and the load on the wheel, the wheel rotates, leaning on the step ledge and is installed on the horistop, 1x10 1st stage, with the position of the shaft 20 with rollers 18n19 and the yoke corresponding to the static position of the wheel .

When moving the boom down the stairs with the jia3Jin4HbiM HiaroM, when you climb in the starting boom, you are at the site, the wheels are resting against the projection of the 1st step (Fig. 5). During the operation of the drive mechanism, the front wheels 4 are intermixed on the 2nd and next steps in the diagram below the ESA per step (Fig. 4), while the rear wheels work on the driving wheel

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sites (Fig. 6-9). When all the wheels on the stairs (Fig. 10) are located, they work according to a step-up lifting scheme (Fig. 4). In the exit from the front of the bridge, the wheels work according to a pattern of movement on a flat surface, (Fig. 11-13).

When moving the kolki along the stairs during descent in the initial position, the wheel is on the landing, the front wheels 4 are at the edge of the 1st step (Fig. 14). When the drive mechanism is in operation, the shafts 20 with rollers 19, moving along the flange 12 under the action of the force of weight of the wheel and the load on it, do not move the wheel from the 1st step to the 2nd and subsequent steps, and the rear wheels 11 They work according to the scheme of the movement of collars on sites (Fig. 15-17). When the wheels are on the ladder (fig. 18-- 19), they work according to the scheme of overcoming obstacles - stunenki (fig. 4). At the exit of the wheels (Figs. 20-22), the front wheels make movements corresponding to the movements of the wheels on a flat surface, and the rear wheels - according to the overcoming obstacle scheme (Fig. 4). The movement of trains to platforms both on the ascent and on descent is touched according to the scheme of kolki movement on a flat surface.

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F o rmu l invention

A wheelchair wheel containing a seat, a backbone, a frame with front running wheels, a drive with a valuable gear, one sprocket of which is installed on the output shaft of the drive, the seat tilting mechanism and the io movement mechanism for ladders, differing from The goal is to increase the safety of a disabled person by ensuring that the ride moves along the stairs. The rear wheels are made running, the mechanism for moving along the stairs is built into the driving wheels, each running wheel is made from a flange with two smooth teeth and one tooth. This path has an internal surface and an elastic edging with teeth - an external one, a holder of two disks, two smooth rollers mounted on the disks of the holder, and one roller with teeth mounted on the frame shaft, and the second asterisks are installed on the frame shaft gearbox, and the drive is equipped with a mechanism for shutting down valuable gearboxes in the form of levers, HJTOKOB and springs.

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Claims (1)

Claim A wheelchair containing a seat, a backrest, a frame with front running wheels, a chain drive, one sprocket of which is mounted on the drive output shaft, a seat tilt mechanism and a ladder movement mechanism, characterized in that, in order to increase the safety of the disabled person by ensuring smoothness the course when moving along stairs, the rear wheels of the stroller are running, the mechanism for moving along stairs is built into the running wheels, each running wheel is made of flanges with two smooth and one toothed Track on the inner surface and the elastic edging with teeth ¹ - on the outer cage of the two discs of two smooth rollers mounted on the discs holder, and one roller with teeth, mounted on the frame shaft, and on the carcass shaft mounted second chain sprocket, and the drive is equipped with a chain disengagement mechanism in the form of levers, rods and springs. 20 27 FIG. 2 Fig.13 FIG. 19 Fi g. 20 FIG. 22